Abstract: The numerical analysis of adhesive anchorage system for carbon fiber reinforced plastics (CFRP) tendon was conducted, of which including influence of different friction coefficients between anchor wall and anchorage agglomerant, influence of different cone angles and with or without straight transition section in front of anchorage and end blocking constraint to the stress state of tendons. The reason of tendons that fail near the front end of the anchorage was found out, relevant strength analysis method and anchorage improvement methods were proposed, the effectiveness of the method were verified by test results. The analysis results show that radial extrusion stress peak values of tendons at 0.7 friction coefficient are 45.01% of the radial extrusion stress peak values at 0.3 friction coefficient. Radial extrusion stress peak values of CFRP tendons at anchorage cone section decrease with the increase of cone angles, while shear stress peak values gradually increase. The addition of straight transition section at cone section ends can relieve radial extrusion stress and shear stress peak values of tendons. Mitigation coefficients are 76.78% and 52.90%, respectively. The existence of end blocking constraint leads an obviously stress concentration phenomenon at the front end of anchorage, which results in the failure of tendon near the front end of anchorage.